Formosan Subterranean Termite
The most destructive termite in the U.S. — massive colonies that destroy wood in months.
Photo: Coptotermes_formosanus_shiraki_USGov_k8204-7.jpg: Photo by Scott Bauer. derivative work:--> த.உழவன் (Public domain) · public domain/CC0 · Wikimedia Commons
Similar to native subterranean termites but swarmers are slightly larger (12–15 mm), yellowish-brown with hairy wings. Workers are indistinguishable in the field; colony size is the key difference — Formosan colonies can reach several million termites versus tens of thousands for native species.
Underground colonies that send foragers above-ground via mud tubes; they also build aerial carton nests inside walls, trees and utility poles. Common in coastal and central Florida.
- Swarms of yellowish-brown winged termites at lights in spring and summer
- Mud tubes that are wider and more complex than typical subterranean tubes
- Carton nests (a gray papier-mâché material) inside wall voids or trees
- Rapid, severe wood damage discovered during renovation
Formosan termites can consume wood at a rate that causes serious structural damage in as little as three months. Their massive colonies, aerial nesting ability and aggressive foraging make them far more destructive than native species.
Rhino treats with liquid termiticide barriers and, where appropriate, baiting systems specifically proven against Formosan colonies. Early detection via annual inspections is critical given their destructive speed.
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